package apiday05homework;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyDemo2 {
    public static void main(String[] args) throws IOException {
        /*
        FileInputStream fis = new FileInputStream("劳大.jpeg");
        FileOutputStream fos = new FileOutputStream("劳大4.jpeg");
        long start = System.currentTimeMillis();
        int len;
        byte[] data = new byte[1024*100];
        while ((len = fis.read()) != -1) {
            fos.write(data,0,len);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕,耗时" + (end - start) + "毫秒");
        fis.close();
        fos.close();

         */
        FileInputStream fis = new FileInputStream("劳大.jpeg");
        FileOutputStream fos = new FileOutputStream("劳大12.jpeg");
        long start = System.currentTimeMillis();
        int len;
        byte[] data = new byte[1024 * 10];
        while ((len = fis.read(data)) != -1) {
            fos.write(data, 0, len);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕,耗时" + (end - start) + "毫秒");
        fis.close();
        fos.close();
    }
}
